摘要:

Arthritic temporomandibular joints were examined for the joint fluid content of neuropeptide Y-like immunoreactivity (NPY-LI) and the intra-articular temperature at two separate sessions. Sixteen patients (23 joints) with rheumatoid arthritis, ankylosing spondylitis, psoriatic arthritis, and unspecific polyarthritis or monarthritis were investigated in this study. The intraarticular temperature ranged between 35.6 and 37.5°C, The concentration of NPY-LI ranged between 72.1 and 4466.0 pmol/1 and was above the normal plasma level in all patients. The intra-articular temperature was negatively correlated with the joint fluid concentration of NPY-LI. Moreover, patients with low intra-articular temperature and high concentration of NPY-LI had a shorter duration of TMJ symptoms than those with high intra-articular temperature and low concentration of NPY-LI.

ISSN:0001-6357    

DOI:10.3109/00016359309041141

出版商:Taylor&Francis    

年代:1993

数据来源: Taylor

摘要:

On the basis of a questionnaire sent to 3000 randomly sampled individuals aged 45–69 years and living in an average Swedish county (response rate, 79.4%), the influences of some demographic, socioeconomic, and attitude variables on the subjective need for treatment with dental implants were studied in stepwise logistic regression models. The overall influence of these background factors was rather limited. Instead, the most important single factor seemed to be dental status. For the subjects wearing removable partial dentures, low education was significantly related to a low subjective need for implant treatment. For the totally edentulous group of subjects, low income was most significantly associated with a low subjective need for implant therapy.

ISSN:0001-6357    

DOI:10.3109/00016359309041142

出版商:Taylor&Francis    

年代:1993

数据来源: Taylor

摘要:

The purpose of the study was to evaluate the longitudinal relationship between incisal wear of central incisors and the size of vertical overbite (OB) and horizontal overjet (OJ). Stone casts of 51 subjects were used for the determinations. Casts were obtained when the subjects were 15 and 27 years old. Statistical analysis was performed with thettest for paired samples, the chi-square test of association, Pearson's product moment correlation coefficient, and Spearman's rank correlation coefficient. Both overbite and overjet diminished after 12 years, and incisal wear increased. It was concluded that increase in age, incisal wear, vertical overbite and incisal occlusion (OB/OJ) are clinical predictors of wear of maxillary and mandibular central incisors in adolescents.

ISSN:0001-6357    

DOI:10.3109/00016359309041143

出版商:Taylor&Francis    

年代:1993

数据来源: Taylor

摘要:

Sucking habits and their connection with family background was investigated in 3-year-old Finnish children. The association between sucking habits and malocclusion was also studied. The study was based on a survey with stratified randomized cluster sampling, confidential questionnaires, and clinical dental examinations. Dummy (pacifier) use was often associated with a negligent attitude towards the child's toothbrushing. This may imply that these parents need more support, encouragement, and counseling from the well-baby clinic than others. Sucking habits were strongly associated with malocclusion.

ISSN:0001-6357    

DOI:10.3109/00016359309041144

出版商:Taylor&Francis    

年代:1993

数据来源: Taylor

摘要:

Both intra- and inter-individual variation in salivary flow rate, buffer effect, and the levels of salivary mutans streptococci and lactobacilli were analyzed in 128 11-year-old children. The follow-up period was 9 months, with six saliva samplings done at regular intervals. Inter-individual variation was relatively large in paraffin-stimulated salivary flow rate: low (<1.0 ml/ min) and high (≥2.0 ml/min) flow rates were measured in 18% and 13% of the children, respectively. Intraindividual variation during the follow-up period was found in 63% of the boys and in 73% of the girls. The buffer effect stayed stable in all samplings in 59% of the boys and in 42% of the girls. Buffer effect was significantly (p<0.001) lower in girls than in boys. Mutans streptococci were analyzed by a chair-side method (Strip mutans test) and by cultivation on mitis-salivarius-bacitracin (MSB) agar plates. The results of the two methods correlated highly significantly (r= 0.79,p<0.001). With the Strip mutans test no variation in test scores occurred in 49% of all subjects in all six samplings, whereas the respective percentage for MSB scores was only 19%. No variation in salivary lactobacilli occurred in only 18% of the subjects, and in 13% the intraindividual variation was as high as≥3 logs. These results show that in young teenagers with a developing dentition, simultaneous changes in behavioral, hormonal, and dietary factors make single-point measurements of salivary factors too unreliable for caries-diagnostic or predictive purposes.

ISSN:0001-6357    

DOI:10.3109/00016359309041145

出版商:Taylor&Francis    

年代:1993

数据来源: Taylor

摘要:

Sodium iauryl sulfate (SLS) is the most commonly used detergent in dentifrices. The present study was concerned with the effect of SLS content of toothpastes on oral epithelial desquamation in an experimental model. Ten dental hygiene students participated in this double-blind cross-over study. Five dentifrices with different concentrations of SLS (ranging from 0.0% to 1.5%) were used in randomized order in the study. One centimeter of each test dentifrice was applied in a cap-splint, which covered both attached and non-attached oral mucosa of the upper jaw for 2 min twice daily. The test period for each experimental dentifrice was 4 days, followed by a 10-day rest period. The dentifrice without SLS did not result in any ontoward reaction, whereas the dentifrice containing 1.5% SLS provoked desquamation in 60% of the subjects.

ISSN:0001-6357    

DOI:10.3109/00016359309041146

出版商:Taylor&Francis    

年代:1993

数据来源: Taylor

摘要:

Samples of saliva were collected from subjects with dentures. These samples were collected both before the dentures were replaced and 1 week after the subjects had received their new dentures. Dibutylphthalate and phenyl benzoate were detected in the saliva samples with a gas-chromatography and a gas-chromatography/mass-spectrometry technique. We also quantified the dibutylphthalate in the saliva. In addition, in an in vitro study, we identified biphenyl leached from heat-cured denture base polymer plates. Our study suggests that subjects with dentures have higher contents of the above organic substances in saliva than subjects without dentures and that organic additives leach from new heat-cured dentures.

ISSN:0001-6357    

DOI:10.3109/00016359309041147

出版商:Taylor&Francis    

年代:1993

数据来源: Taylor

摘要:

Chronic orofacial pain without obvious pathologic findings is not uncommon and is a diagnostic problem. It is uncertain whether this type of pain is different from other chronic idiopathic pain conditions. Fifty-five patients referred to the Facial Pain Diagnostic Group at The Karolinska Institute, School of Dentistry at Huddinge University Hospital, Stockholm, were investigated retrospectively. There were 49 women and 6 men, ranging in age from 30 to 81 years, all with orofacial pain of more than 6 months’duration, which the patients considered to be of dental or paradental origin. Despite dental treatment aimed to relieve the pain, nopermanentrelief was observed. The results suggest that chronic idiopathic orofacial pain resembles other chronic idiopathic pain, and adequate diagnosis and treatment require not only dental but also medical competence.

ISSN:0001-6357    

DOI:10.3109/00016359309041148

出版商:Taylor&Francis    

年代:1993

数据来源: Taylor

摘要:

A method of manufacturing an all-ceramic crown composed of a coping of dense-sintered, high-purity alumina with dental porcelain is described. This method takes the sintering shrinkage of alumina into consideration and makes it possible to produce individual dental copings in dense-sintered, high-purity alumina, which is a biocompatible implant material. The alumina used has density, grain size, and flexural strength within the limits of the values required in ISO 6474-1981,‘Implants for surgery, ceramic materials based on alumina'.A dense-sintered, high-purity alumina coping with porcelain.

ISSN:0001-6357    

DOI:10.3109/00016359309041149

出版商:Taylor&Francis    

年代:1993

数据来源: Taylor